Conversion of ICAO/FAA CPL/IR to HK CAA ATPL?

[Minima]

I require some information on the conversion of my Pakistani CAA(ICAO)/FAA CPL/IR to a Hong Kong CAA ATPL.I also hold a" Pass" on my ICAO ATPL written papers.I have a Grand Total of 2000 hrs inclusive of 1800 hrs on a Multi-engine Turboprop.
I would appreciate some details regarding the entire process such as what papers need to be taken and the cost involved.
Cheers!